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The battery-powered ULT TOWER 9 is a large event speaker with a useful second role beside a television. Its optical input, analog connection and microphone/guitar sockets make it more versatile than a phone-only party box. The size and weight require a deliberate place for it to live.
This review covers the rechargeable Tower 9. The similarly named Tower 9AC is a separate mains-powered version.
A large woofer, two midrange drivers and four tweeters give the Tower 9 a substantial acoustic platform. The rear tweeters are relevant when people gather around the cabinet, while the two ULT settings let the owner choose different bass emphasis. EQ through Sound Connect adds another route to adjustment.
The driver layout suits a gathering where listeners move around the cabinet. Placement still needs to keep the speaker’s front and rear clear, especially if it normally lives beside furniture as a TV speaker. Allow space around it before committing to a corner or narrow storage niche. A cabinet this large is easiest to live with when the listening position and carrying route are planned together.
The optical connection gives a television a direct digital route into the speaker, and TV Sound Booster is designed to work with TV playback. Check that the television can output a compatible PCM signal before treating the connection as automatic. The analog input offers another route for a source with a headphone or line output.
USB-A plays supported files from a storage device and can charge a phone. The two 6.3 mm connections separately accommodate a microphone and a microphone or guitar, with different sensitivity settings for the instrument role. That flexibility is useful for karaoke or casual performance, but the cabling and microphone still need to match the intended setup.
With Battery Care disabled, sony’s 25-hour rating uses Bluetooth, volume 18, ULT1 or ULT2 and lighting off. Enabling the lights at that volume reduces the estimate to 12 hours. At the maximum volume of 50 with lighting, the documented figure is about two and a half hours. An all-evening high-output event therefore benefits from available AC power.
A full recharge takes around three hours when the speaker is off. Battery Care can restrict the charge to approximately 90%, useful when the speaker commonly remains connected at home. USB phone charging shares the available reserve, so charging both devices before leaving preserves more of the reserve for music.
The wheels and handle ease movement over a suitable route, but the 29.6 kg lifting weight remains substantial. A stairway, vehicle loading height or narrow storage area can be more decisive than the distance to the party. Measure the full 410 × 456 mm footprint as well as the height.
The tall format also calls for a stable position away from traffic and drink placement. Cable routes matter when using optical audio, microphones or mains power. The convenience of a single cabinet is strongest when it can stay near its regular location and only occasionally move to an outdoor event.
The newer Tower 7 is lighter at 22.8 kg and changes the connection emphasis to RCA, XLR and USB-C audio. It also introduces Auracast-based Party Chain. The Tower 9 remains relevant when its optical TV connection and separate microphone/guitar arrangement are the features you will actually use.
The Tower 9 fits buyers who want a substantial party speaker that can also connect directly to a TV and live sources. Its battery makes an unplugged event possible, with sharply shorter endurance at full output. Buy it only after checking the carrying route, storage space and connections that give this large cabinet its purpose.
This is a research-based review. The Fasit has not physically tested this product.
The specifications and features discussed in this review come from manufacturer documentation.
ULT TOWER 9 | Help Guide | Specifications